1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 */ 19 20 package org.apache.myfaces.orchestra.lib; 21 22 import java.io.IOException; 23 24 import javax.servlet.Filter; 25 import javax.servlet.FilterChain; 26 import javax.servlet.FilterConfig; 27 import javax.servlet.ServletException; 28 import javax.servlet.ServletRequest; 29 import javax.servlet.ServletResponse; 30 31 /** 32 * A filter that does absolutely nothing. Can be used with the CompoundFilter. 33 * 34 * @since 1.1 35 */ 36 public final class _NullFilter implements Filter 37 { 38 public void init(FilterConfig filterConfig) throws ServletException 39 { 40 } 41 42 public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, 43 final FilterChain filterChain) throws IOException, ServletException 44 { 45 filterChain.doFilter(servletRequest, servletResponse); 46 } 47 48 public void destroy() 49 { 50 } 51 }